Stripper for slitting machines



Nov. 22, 1927. 1,650,193

E. w. DAYKIN STRIPPER FOR SLITTING MACHINES Filed Jan. 23. 1925 2 sheets shat 1 5 I gnwntoc 2 7 WZH/L K- Nov. 22, 1927.

E. W. DAYKIN STBIPPER FOR SLITTING MACHINES Filed Jan. 23, 1925 2 Sheets-Sh't 2 I 29 panied Patented Nov. 22, 1927.

UNITED STATES :unwam) w; narxnr,

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' srnrrrnn iron smrrnie'monnms Application Med January as, 1885. serial 104,296.

This invention relates to machines for cutting or slitting metal sheets used for making expanded metal, and more particularly to a novel support and assembly for the stripper blades which insure the proper removal of the slitted blank from the cutting discs and properly guide it out of the cutting machine.

'A primaryobject of the invention is to provide a novel mounting for the individual stripper blades, whereby all of the blades for a particular cutting roll may be put in place as a unit and removed in the same manner, thus saving considerable time when the strippers are being removed or inserted, and also facilitating their adjustment into prop er alinement. Heretofore it has been customary to mount the strippers on a fix' pin, with the result that the mounting is accomby a certain amount of looseness, and even though in some cases the strippers may be mounted initially with considerable rigidity, they in time acquire a looseness which cannot be tightened except by shutting down the machine and re-alining the whole set by some method of redressing all of the parts.

Accordingly, the present invention has in view a novel mount for the series of individual stripper bla es which fit between the cutting discs, whereby all of the strippers may be ri 'dly locked in the desired set position, an even thoughlooseness or play develops in use, such play may be readily remove by a simple and practical form 85 of adjustment without requiring the removal of any of the strippers, and without requiring the taking down of any part of the apparatus or otherwise temporarily rendering it inoperative and out of use.

A further object of the invention is to provide a simple, practical, and substantial construction t at is easily made and assemb and readil manipulated at all times thereby insuring t e full period of operation for the cutting machine and consequently increasing its production, while at the same time also r orming better stripping and producing ess scrap. k

With the above and other objects in view which will more readily appear as the na ture of the invention is better understood, the

same consists in the novel construction, com

OF YOUNGSTOWN, OHIO, ASSTGNOB, BY ASSIGNMENTS,

YOUNGSTOWN, OHIO, CORPORATION 01 MICHI- bination and arrang ement oi hereinafter more; illustrated and claimed. .A prefe ma practical embodiment er the invention is shown in the accompanying drawings, in which:

I Figure 1' isfa vertical sectional view taken machineo the Curtis type, illustrating application of the invention. 1

gb a" 'air of cutting rolls of a slittitlilg 2 is a horizontal sectional view taken on the line 2-2 of E" Figure 3 is an enlarged etail horizontal sectional view of one corner of the improved supporting and adjusting means for strippers.

Similar reference characters the to corresponding parts throughout several figures of the drawings.

The stripper blades or fin' gets which between the steel discs are made of tem ered steel and are accurately formed so t at each one of the whole series are lieates of the others and no reason has been oun'd to exist whereby one stripper will come differently worn than the others of the same set. Therefore, it is one of the primary ob ects of the present invention to adjust all of the striplpers as a mittmg of res ly taking up any unit thereby perslack or looseness which develops in the strippers due to the wear, without the neoessi ting down the machine and reg whole set of strippers by or machining the same.

of shutthe The said stripper blades are designated nerally as S, and having a relatively ti ctional fit betwen the cutting discs t of the cutting rolls R which may be mounted in the conventional manner in the frame F, and rotate slitted is fed in the direction of the'arrows led shown in Fifire L The sheet metal to be tween the rolls R-R and the 95 strippers S are preferabl employed in upper and lower units as own in with the extremities which'project between the cutting disks rounded to thereby form a guide for facilitating the entry of the sheet to be slitted between the rolls. The strippers of the upper and lower units have their adi stripping spaced apart to permit of the pasage of edge portions properflly.

Figural.

opposite spaced abutment shoulders a According to the present invention the said supporting ends of the strippers are all mounted on a common assembly bolt 1, and

alternate with fillers or spacers b for properly spacing the strippers with reference to the cutting dics. As shown in Figs. 2 and 3, the said assembly bolt is preferably threaded at opposite endsthereby to receive the clamping nuts 2, and also the said'ends are mounted in slidable or shiftable adjusting plates 3.

The plates 3 are important since they provide in effect a carriage for the bolt, and, ac-

cordin'gfto the embodiment shown may be of angular formation thereby to fit around the opposite ends of the bed or carrier block 4 to which they are slidably connected by means of the screws 5 and slots 6 shown in Figure? For the purpose of accommodating the bolt 1 and the supporting ends of the stri pers a, the said carrier block 4 is groove or recessed as indicated at 7 thereby to house'and accommodate the rounded supporting ends of the strippers. 7

When the strippers and the filler pieces are all assembled on the bolt 1 and the latter Q 3 it will be ap arent that the roun su ortin ends 0 the strippers S will lie with- P g in the recess 7 of the bed block while the.

shoulders a have an abutting engagement with the edge portions of the bed block adjacent the recess 7 thereb preventing relative rotary movement of t e strippers on the bolt and holding all of the same in rigid alinement and position. 7

To insure the correct positio'hin and alinement of the strippers as above in 'icated and to also take up wear thereon, the angular flange or wing portions 8 of the adjusting plates 3 are rovided with adjusting screws 9 which wor against the rear face of the bed block 4 and have a threaded feedengagement with the rear flange portions 8 of the adjusting plates. By turning the adjusting screw 9 it will be apparent that the plates 3 ma be drawnrearwardly thereby to pull the oltl backwardly and force the shoulders a of thestrippers firmly against the edges of the bed block adjacent the recess 7. Thus when looseness in the strippersoccurs it is only necessary to give the screw 9 the requisite number of turns to bolt backwardly as a unit and force a l of the strippers against the recessed face of the bed block as indicated.

The said bed blocks 4 are preferably mounted upon the rest bars 10 or equivalent stripper in' ull the with its operation. When it does becomenecessary to remove the strippers, the entire assembly may be removed as a unit by simly unlocking or releasing the bed block 4 om the rest bar 10 by removing thev screws 11. The entire unit can then be withdrawn from the machine and then reinserted after it has been repaired, or a new duplicate unit grey be quickly inserted without difliculty or e ay. I

Without further description it is thought that the features and advantages of the 1n vention will be readily apparent to those.

skilled in the art, and it Wlll of course be understood that changes in the form, proportion and minor details of construction may be resorted to, without departing from the spirit of the invention and scope of the appended claims.

I claim:

1. A stripper blade mounting for slitting.

machines including stripper blades having shoulders a carrier block removably mounted in the machine, and adjustable means for abutting the shoulders of the stripper blades into rigid engagement with the carrier block. 2. A stripper blade mountin for slitting machines including a carrier filock removably mounted in the machine, a bolt having the stripper blades assembled thereon, shiftable plate members slidably mounted on the carrier block and supporting said bolt, and means for adjusting said plate members.

- 3. A stripper blade mounting for slitting machines including a carrier block removably mounted in the machine, said block having a recess, a member having the strip er blades assembled thereon and lying wit in said recess, means at the end of the recess of the carrier block for shiftably supportin said member, and means for adjusting and setting said last named means.

4. -A stripper blade mounting for slitting machines including a carrier block having a recess opening at one side thereof, .a member having the stripper blades assembled thereon and lying substantially within said recess, plate members adj ustably fitted to the ends of said carrier block, clamping means on the end of said member for engaging the outer faces of said plates, and means for adjusting said plates to move the said member transversel of the carrier block.

5. A stripper blade mounting for slitting machines, including in combination with the stripper blades having an apertured supporting portion and opposite shoulders, a carrier block having a recess, and a member.

fitting in the apertured portions of said stripperv blades and adjustably connected with the carrier block whereby said shoulders' ofthe blades may be wedged into engagement with the block.

6. A stripper blade mounting for slitting machines including in combination with the stripper'blades having an apertured sup-. porting portion and abutment shoulders, a

recessed carrier block, abolt adapted to receive the apertured portions of the. stripper blades and maintain the same in said recess a whereby the shoulders engage with the edges machines including a carrier block remov; ably mounted in the machine, said block 2 havinga recess opening at one side'thereof,

a bolt having the stripper blades asssembled thereon and lying substantially within said recess, adjusting plates located at the ends of said carrier block. and receiving the ends of said bolt, said platesbeing provided with guide slots, guide projections on the carrier block and engaging 1n said guide slots of the plate members, an ofiset portion on the plate members, andan adjusting screw car.-

ried by said oflset portion and engagmg with .35

the carrier block;

8. A stripper blade mounting for slitting machines comprising in combination with the stripper blades havin wear shoulders, a carrier block, means or carrying said blades and taking, up wear on said shoulders, and means for movin said first mentioned means at right ang es to the wear edges of said shoulders to cause said strip- Ber. blades to rigidly engage with the carrier lock.

In testimony whereof I hereunto aifix my signature,

EDWARD w; DAYKIN. 

